Puppet Function: grep

Defined in:
puppet/modules/stdlib/lib/puppet/parser/functions/grep.rb
Function type:
Ruby 3.x API

Overview

grep() ⇒ Any

This function searches through an array and returns any elements that match the provided regular expression.

Examples:

grep(['aaa','bbb','ccc','aaaddd'], 'aaa')

Would return:

['aaa','aaaddd']

Returns:

  • (Any) 


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# File 'puppet/modules/stdlib/lib/puppet/parser/functions/grep.rb', line 6

newfunction(:grep, :type => :rvalue, :doc => <<-EOS
This function searches through an array and returns any elements that match
the provided regular expression.

*Examples:*

  grep(['aaa','bbb','ccc','aaaddd'], 'aaa')

Would return:

  ['aaa','aaaddd']
  EOS
) do |arguments|

  if (arguments.size != 2) then
    raise(Puppet::ParseError, "grep(): Wrong number of arguments "+
      "given #{arguments.size} for 2")
  end

  a = arguments[0]
  pattern = Regexp.new(arguments[1])

  a.grep(pattern)

end